George, it sounds to me like you'd prefer two different variables: the number of international students who change country; and the number of domestic students who change country. Those data aren't available to us. We have an aggregate that shows the sum of those two. I think a school that had a small number of international students but which was very good at placing them would, eventually, end up with many more international students. So, I feel very happy filtering out schools with very small numbers of international students, also because those tend to be very unusual people: people with personal connections, high motivations and language skills. For example, very few foreigners attend top Indian schools, and then tend to be people of Indian origin. If my British niece attends ISB, the IIMA or IIMB, she won't have similar outcomes to the other international students.
Given the data we do have, we can only ask: is this school's international mobility higher or lower than its number of international students would suggest? I have put a chart at
https://twitter.com/DuncanChapple/status/986278176405049344 with that comparison.
In a way, we could do this numerically, by adding the % of international students and the ranking for international mobility. I did that calculation, which is obviously problematic, and got:-
Schools with more mobility than their numbers of international students would suggest (I guess many of these are schools with more international mobility opportunities than international students):
HKUST Business School 7
SDA Bocconi 11
CUHK Business School 23
Ceibs 31
Indian Institute of Management Ahmedabad 35
University of Pennsylvania: Wharton 36
Sungkyunkwan University GSB 44
University of Pittsburgh: Katz 46
Dartmouth College: Tuck 48
Indian Institute of Management Bangalore 51
Indian School of Business 58
Indian Institute of Management Calcutta 72
Schools with less mobility than their number of international students might suggest (I guess many of these are schools with fewer internaitonal mobility opportunities than international students):
University of Strathclyde Business School 38
University of Edinburgh Business School 41
University of Bath School of Management 45
Lancaster University Management School 49
Durham University Business School 53
Babson College: Olin 60
University of Connecticut School of Business 63
Leeds University Business School 65
University of San Diego School of Business Administration 69
Cornell University: Johnson 84
Pennsylvania State University: Smeal 86
University of Southern California: Marshall 90
University of Texas at Austin: McCombs 96
PS The numbers after each school's name is its FT ranking for international mobility.